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Category:   Application (Generic)  >   Cisco WebEx Meetings Server Vendors:   Cisco, WebEx
Cisco WebEx Meetings Server Input Validation Flaw Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1039721
SecurityTracker URL:  http://securitytracker.com/id/1039721
CVE Reference:   CVE-2017-12294   (Links to External Site)
Date:  Nov 2 2017
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco WebEx Meetings Server. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Cisco WebEx Meetings Server software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The vendor has assigned bug ID CSCvf85562 to this vulnerability.

Adam Willard of Blue Canopy reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Cisco WebEx Meetings Server software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   No solution was available at the time of this entry.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1 (Links to External Site)
Cause:   Input validation error

Message History:   None.


 Source Message Contents

Subject:  https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1

 
 


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